Air ducting - Import export

EEx’e’ certified electric duct air heater EEx e T2 – T6 ATEX The “LEH-Exe” type electric heaters comprise a range of certified EEx e air duct heaters, custom built to meet client specifications and suitable for use in zone 1 & 2 hazardous areas. The main applications are the heating of air in ventilation - / air conditioning or heat-recovery installations. Wide use areas are applications of the process - / environment-technology i.e. at the catalytic afterburning of exhaust fumes or drying ovens or in the plastic - / textile or paper industry. Through a variable construction concept, diverse use possibilities emerge. The application of highly compacted electrical heating elements with high purity compacted magnesium oxide powder sheathed metal tube and the direct heat transfer at the medium to be heated leads to an efficient realization of the electric energy to thermal energy. Special materials of acid constant rustproof steel stand for the heating of aggressive media by disposal. Alternatively, the heaters can be delivered also in the materials INCOLOY, INCONEL, HASTELLOY and MONEL. The duct heaters essentially consist of the following main-components: Duct with flat flanges Rod heating elements Temperature Sensors (Thermostat / Thermocouple / RTD) Electrical terminal box

Aluminized adhesive carbon felt is made of 100% pre-oxidised polyacrylonitrile fibre in a black colour. It is fully fireproof and an excellent fire retardant; it does not drip and has very low fume emissions; it can also be used as a fire blanket because it is fire-resistant up to temperatures with peaks around 800°C. It has good chemical resistance, in particular to alkalis, diluted acids and solvents, and a good ability to reflect heat and increase the luminosity of work places.

It comprises a glass scrim reinforced aluminium tape coated with an aggressive cold weather acrylic adhesive, supplied with a siliconised paper liner. This very strong, high performance aluminium tape is ideal for use in a range of demanding applications and environmental conditions. Features: For use as a heat deflector. Good high and low temperature resistance ‐service temperature: ‐35°C to +120°C. Scrim reinforced for extra strength. Good water vapour resistance. Same aluminium visual aspect to blend in easily with air ducts. Good ageing resistance both indoors and outdoors. Soft and conformable. Aluminium backing provides good reflection of both heat and light. Cold weather high quality adhesive for good bonding to a range of substrates. Good mechanical resistance. Applications: General purpose patching, sealing and holding applications. Joining fibre insulation on aircraft. Joining of foil faced glass fibre or duct board joints. Sealing cold store insulation.

Our range of aluminium foil tapes is designed to cover all key application areas where high temperature resistance and electrical or thermal conductivity are required. Applications include insulation and duct sealing in the heating, ventilation and air conditioning market and electromagnetic protection in the electronic industry. Key applications: Closure of soft and rigid air duct insulation in HVAC applications. Insulation of boiler cases, high-pressure steam pipe insulation, etc. Jointing of thermo-acoustic panels. Galvanising and aeroplane/automotive painting and refinishing. For masking during sandblasting and powder finishing. Fixing of coils to refrigerator panels to maximize cold efficiency. For applications requiring a heat reflector. Thicknesses : 30µ, 40µ,50µ,80µ and 100µ(with or without protective liner) Benefits: Softness and conformability for ease of use in application.

Our range of aluminium foil tapes is designed to cover all key application areas where high temperature resistance and electrical or thermal conductivity are required. Applications include insulation and duct sealing in the heating, ventilation and air conditioning market and electromagnetic protection in the electronic industry. Key applications: Closure of soft and rigid air duct insulation in HVAC applications. Insulation of boiler cases, high-pressure steam pipe insulation, etc. Jointing of thermo-acoustic panels. Galvanising and aeroplane/automotive painting and refinishing. For masking during sandblasting and powder finishing. Fixing of coils to refrigerator panels to maximize cold efficiency. For applications requiring a heat reflector. Thicknesses : 30µ, 40µ,50µ,80µ and 100µ(with or without protective liner) Benefits: Softness and conformability for ease of use in application.

Thermal conductivity coefficient (X) EN 12665 -W/m.K = 0,032 (-20°C) -W/m.K = 0,034 (0°C) -W/m.K = 0,036 (20°C) -W/m.K = 0,038 (40°C) -W/m.K = 0,040 (+60°C) Water vapor diffusion resistance EN 12086 = µ ≥ 7.000 Classification of reaction to fire EN 13501-1 = B - s2 - d0 Heat resistance EN 14706 = max. +110 Soluble chloride ion level EN 13468 = 500 pH EN 13468 = 6--8 Flexibility = Perfect Closed cells' percentage = > 90 Resistance to chemicals (oils, mineral oils) = Good Mold and odor formations = No